C21221212121211331322132313132313231313232233132313223313231323221331123233311
  >>
   C2122121212121133132213231313231323131323223313231322331323132322133112323331
  <<
   C21221212121211331322132313132313231313232233132313223313231323221331123233313
  >>
 
 
 C21221212121211331322132313132313231313232233132313223313231323221331123233312
  >>